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Fuel pressure drop
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<blockquote data-quote="rizal_eg9" data-source="post: 1126199" data-attributes="member: 8461"><p>Standard B16 A only run 240cc injectors saturated type. 280cc injectors for vtec engine is on H22A.</p><p></p><p>Form my view, the pump is running at constant speed because it is only using a relay. It is just on/off. So the only thing that regulate the pressure is the fuel pressure regulator. Even if the pump is flowing more fuel but the return line is wide open, it will not hold the pressure in the fuel rail. Stock pump should be able to support up to 75psi at rail pressure.</p><p></p><p>In any case, diagnose with the basic and cheap thing first.</p><p></p><p>Just my thought.</p></blockquote><p></p>
[QUOTE="rizal_eg9, post: 1126199, member: 8461"] Standard B16 A only run 240cc injectors saturated type. 280cc injectors for vtec engine is on H22A. Form my view, the pump is running at constant speed because it is only using a relay. It is just on/off. So the only thing that regulate the pressure is the fuel pressure regulator. Even if the pump is flowing more fuel but the return line is wide open, it will not hold the pressure in the fuel rail. Stock pump should be able to support up to 75psi at rail pressure. In any case, diagnose with the basic and cheap thing first. Just my thought. [/QUOTE]
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Fuel pressure drop